Datasheet AM1-PCB, AM1 Datasheet (WJ Company)

WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX: [phone] • e-mail: [e-mail] • Web site: www.wj.com

April 2002

AM1

Product Description

The AM1 is a general purpose gain block that
offers good dynamic range in a low cost surface
mount package. The combination of flat IP3
and noise figure performance over frequency
makes it attractive for both narrow and broad­band applications. Superior thermal design
allows the product to achieve +37 dBm IP3 per­formance at a mounting temperature of +85°C
with an associated MTBF of >100 years

3

. All

devices are 100% RF and DC tested.

Product Features

•

60-3000 MHz Bandwidth

•

+

37 dBm Output IP3

•

2.4 dB Noise Figure

•

14 dB Gain

•

+

18 dBm P1dB

•

MTBF >100 Years

•

SOT-89 SMT Package

•

Single Bias Supply (+3.3 to +4.5 V)

Functional Diagram

High Dynamic Range Gain Block

Absolute Maximum Ratings

Parameter Rating

Operating Case Temperature -40 to +85°C
Storage Temperature -55 to +125°C
DC Voltage +5.5 V
Input RF Power (continuous) +7 dBm

Operation of this device above any of these parameters may cause permanent damage.

Ordering Information

Part No. Description

AM1 High Dynamic Range Amplifier

(Available in tape and reel)

AM1-PCB Fully Assembled Application Circuit

The Communications Edge

™

Specifications

Parameter Units Min. Typical Max.

Frequency Range MHz 60 3000
S21 - Gain dB 13 14 16
S11 - Input Return Loss dB -9
S22 - Output Return Loss dB -15
Output IP3 dBm +33 +37
Output P1dB dBm +18
Noise Figure dB 2.4
Operating Current Range mA 55 75 100
Supply Voltage V 4.5

Test conditions unless otherwise noted.

1.T = 25°C, Vdd = 4.5 V, Frequency = 800 MHz, 50 Ω system.

2. OIP3 measured with two tones at an output power of 2 dBm/tone separated by 10 MHz.The
suppression on the largest IM3 product is used to calculate the OIP3 using a 2:1 slope rule.

3. MTBF calculated with channel temperature at 155˚C.

Typical Parameters

Parameter Units Typical

Frequency MHz 900 1900
S21 dB 13.4 12.2
S11 dB -12.5 -13.2
S22 dB -21.2 -17.8
Output IP3 dBm +37.5 +37.0
Output P1dB dBm +18.1 +18.0
Noise Figure dB 2.4 2.6

Typical specifications reflect AM1 measured on application circuit (AM1-PCB).

Actual Size

4

123

Function Pin No.

Input 1

Ground 2

Output/Bias 3

Ground 4

WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX: [phone] • e-mail: [e-mail] • Web site: www.wj.com

April 2002

AM1

Performance Charts (T = 22°C, unmatched device in a 50 ohm system)

Application Circuit: 0.8 to 2.6 GHz (AM1-PCB)

NOTE: The application circuit is designed for wide bandwidth. For narrow band applications, S11 and S21 can be improved with an input shunt microstrip element to ground.

Thermal Specifications

Parameter Rating

Operating Case Temperature -40 to +85°C
Thermal Resistance (Maximum) 88°C/W
Junction Temperature +155°C

(Recommended Maximum)

Notes:

1.Thermal Resistance determined at Maximum Tab Temperature and Maximum Power
Dissipation.

2. Recommended Maximum Junction Temperature insures a MTBF of 1 million hours.

3. Refer to WJ Application Note “AM1 Temperature Effects on Reliability” for more information.

20

15

10

Gain (dB)

Vds = 4.5 V

5

Id = 65 mA

0

0 500 1000 1500 2000

Frequency (MHz)

2500 3000 3500 4000 0

Gain vs. Frequency Input/Output Return Loss Gain and Output Power vs. Input Power

0

-5

-10

-15

-20

Return Loss (dB)

-25

Vds = 4.5 V
Id = 65 mA

-30

-35
500 1000 1500 2000

S11

S22

2500 3000 3500 4000

Frequency (MHz)

25

Frequency = 1.9 GHz
Vds = 4.5 V

20

Id = 69 mA

15

10

5

Gain (dB) and Output Power (dBm)

0

-5

0 5 10 15 20

Input Power (dBm)

Output Power (dBm)

Gain (dB)

Typical Specifications

Frequency 0.9 GHz 1.9 GHz 2.4 GHz
Magnitude S21 13.4 dB 12.2 dB 11.5 dB
Magnitude S11 -12.5 dB -13.2 dB -11.4 dB
Magnitude S22 -21.2 dB -17.8 dB -17.3 dB
OIP3 37.0 dBm 37 dBm 37 dBm
Noise Figure 2.4 dB 2.6 dB 2.8 dBm

Schematic

RF IN

C = 56 pF

L = 10 nH

AM1

3 or more Via
Grounds req.

Bias Vds = 4.5 V, Id = 75 mA

S-Parameters

20

10

0

-10

Magnitude (dB)

-20

-30
500 1000 1500 2000 30002500

S11

S22

Frequency (MHz)

S21

FR4 Board Layout (T = 14 Mils)

0603 Package

C = 56 pF

INPUT OUTPUT

0603 Package
L = 10 nH

GND

GND

L = 12 nH

C = 56 pF

All Trans. Lines Z = 50 Ohm

0603 Package

L = 12 nH

+4.5 V

C = 56 pF

0603 Package

C = 56 pF

0603 Package

C = 56 pF

RF OUT

DC 4.5 V

9

10

8

10

7

10

MTBF (hours)

6

10

5

10

MTBF vs. Temperature

Ground Tab

50 75 100 125 150 175 200

Temperature (°C)

Junction

AM1

Application Circuit: 60 - 100 MHz

Typical Specifications

Frequency 70 MHz
Magnitude S21 16.3 dB
Magnitude S11 -17.1 dB
Magnitude S22 -15.6 dB
Noise Figure 5.1 dB
Bias Supply 4.5 V @ 75 mA

Schematic

RF IN

C1

.018 µF

L1

180 nH

5.6 pF

C2

PIN 1 PIN 3

AM1

PIN 2,4

VDD = + 4.5 V

ID = 75 mA

L2

180 nH

.018 µF

C4

.018 µF

C3

RF OUT

S-Parameters

20

15

10

5

0

-5

Magnitude (dB)

-10

-15

-20
30 50 70 90 110 130 150

Frequency (MHz)

S21

Noise Figure

8

7

6

5

Noise Figure (dB)

4

3

30 50 70 90 110 130 150

Frequency (MHz)

WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: [phone] • e-mail: [e-mail] • Web site: www.wj.com

April 2002

WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX: [phone] • e-mail: [e-mail] • Web site: www.wj.com

April 2002

AM1

Specifications and information are subject to change without notice.

Caution! ESD sensitive device.

Outline Drawing

Land Pattern

Mounting Configuration

WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX: [phone] • e-mail: [e-mail] • Web site: www.wj.com

April 2002

T ypical Test Data

S-Parameters (Vds = +4.5 V, Ids = 75 mA,T = 22°C, unmatched device in a 50 ohm system)

Freq (MHz) S11 (Mag) S11 (Ang) S21 (Mag) S21 (Ang) S12 (Mag) S12 (Ang) S22 (Mag) S22 (Ang)

250 0.499 -26.60 4.732 163.00 0.091 7.59 0.292 -24.50
350 0.483 -29.90 4.677 160.00 0.092 2.17 0.275 -23.50
450 0.473 -34.20 4.624 156.00 0.093 -1.66 0.263 -23.80
550 0.466 -39.20 4.624 152.00 0.093 -4.84 0.257 -25.00
650 0.459 -44.60 4.571 148.00 0.093 -7.70 0.248 -27.00
750 0.453 -50.30 4.571 143.00 0.094 -10.40 0.243 -29.20
850 0.447 -56.10 4.467 139.00 0.094 -12.90 0.234 -31.50

950 0.441 -62.30 4.467 134.00 0.094 -15.40 0.229 -34.30
1050 0.435 -68.60 4.467 130.00 0.094 -17.90 0.221 -37.50
1150 0.347 -74.23 4.576 132.39 0.096 -18.13 0.108 -27.27
1250 0.345 -80.74 4.537 128.65 0.096 -20.21 0.102 -27.41
1350 0.351 -86.61 4.492 124.94 0.096 -22.23 0.100 -27.26
1450 0.351 -91.21 4.450 121.26 0.095 -24.21 0.098 -30.03
1550 0.351 -97.34 4.406 117.51 0.095 -26.26 0.093 -29.92
1650 0.357 -102.70 4.357 113.92 0.094 -28.09 0.094 -30.82
1750 0.357 -107.50 4.321 110.26 0.094 -30.05 0.089 -33.77
1850 0.360 -113.99 4.265 106.53 0.093 -32.01 0.086 -32.21
1950 0.368 -118.52 4.222 103.05 0.093 -33.81 0.087 -36.15
2050 0.366 -124.10 4.178 99.26 0.092 -35.95 0.078 -37.29
2150 0.375 -129.50 4.115 95.85 0.091 -37.66 0.081 -36.43
2250 0.380 -133.90 4.081 92.16 0.091 -39.71 0.077 -42.91
2350 0.378 -139.40 4.018 88.51 0.090 -41.70 0.073 -39.88
2450 0.395 -144.55 3.984 85.14 0.089 -43.45 0.076 -45.37
2550 0.394 -148.39 3.928 81.27 0.088 -45.65 0.067 -46.63
2650 0.391 -154.12 3.868 77.98 0.087 -47.48 0.070 -45.24
2750 0.410 -159.49 3.828 74.36 0.087 -49.46 0.065 -52.31
2850 0.405 -162.27 3.757 70.85 0.085 -51.43 0.060 -49.00
2950 0.407 -168.06 3.713 67.63 0.085 -53.15 0.062 -52.88
3050 0.421 -172.65 3.655 64.07 0.083 -55.23 0.055 -56.02
3150 0.419 -175.62 3.597 60.85 0.082 -56.91 0.055 -55.16
3250 0.423 178.73 3.560 57.48 0.081 -58.82 0.052 -59.73
3350 0.432 174.86 3.501 54.10 0.080 -60.67 0.049 -59.49
3450 0.432 170.90 3.458 50.87 0.079 -62.36 0.048 -60.99

AM1